CN105621280A - Device and method for mounting and dismounting crane boom - Google Patents

Device and method for mounting and dismounting crane boom Download PDF

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Publication number
CN105621280A
CN105621280A CN201610181167.1A CN201610181167A CN105621280A CN 105621280 A CN105621280 A CN 105621280A CN 201610181167 A CN201610181167 A CN 201610181167A CN 105621280 A CN105621280 A CN 105621280A
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girder steel
gin
amplitude variation
pulley
fixed
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CN105621280B (en
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庄爱军
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庄爱军
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details
    • B66C23/82Luffing gear

Abstract

The invention discloses a device and method for mounting and dismounting a crane boom. The device comprises a main chord member, a transverse steel girder, a longitudinal steel girder, an amplitude-variable cart, a derrick crane, a movable pulley set, an amplitude-variable steel wire rope and a lifting steel wire rope, wherein the derrick crane is fixed to a derrick crane base; the lower ends of the transverse steel girder, the longitudinal steel girder and the main chord member jointly define a semi-closed rectangular area; the amplitude-variable cart is clamped in the semi-closed rectangular area; the amplitude-variable steel wire rope is connected with a chain block, one end of the amplitude-variable steel wire rope is fixed to the derrick crane, and the other end of the amplitude-variable steel wire rope is fixed to the main chord member; one end of the lifting steel wire rope is fixed to the main chord member, and the other end of the lifting steel wire rope is wound around the movable pulley set and then is fixed to the derrick crane. According to the device and method for mounting and dismounting the crane boom, the amplitude-variable cart is matched with the derrick crane and the movable pulley set, the crane boom is mounted and dismounted, the space and advantages of the amplitude-variable cart are fully used, the crane boom can be hoisted to be disconnected from a tower crane at a time, the mounting and dismounting structure is simple, operation is simple, and feasibility is high.

Description

The device of installation and removal lifting beam and method
Technical field
The present invention relates to hoisting machinery technical field of construction, particularly relate to a kind of device and the method that utilize amplitude variation trolley installation and removal lifting beam.
Background technology
Along with socialist construction paces are accelerated, high-rise, high-rise building uses tower crane and occurs encorbelmenting mistake and buildings when tower crane locate the tower hoist that reason gets more and more normally to dismantle, and big absolutely number needs the tower crane lifting beam of midair disintegration to stretch out tens meters, buildings edge, lifting beam disposable cannot be hung tower machine successful connection and place roofing layer by general auxiliary dismounting equipment, such operation efficiency is low, and human cost is big.
Summary of the invention
For the weak point existed in above-mentioned technology, the present invention provides a kind of and utilizes amplitude variation trolley to mount and dismount device and the method for lifting beam.
For achieving the above object, the present invention provides a kind of device mounting and dismounting lifting beam, comprise main device for carrying a tripot bar, horizontal girder steel, longitudinal girder steel, amplitude variation trolley, gin-pole truck, running block, luffing wireline and the wireline that hoists, described longitudinal girder steel is fixed on main device for carrying a tripot bar by pinch roller and hook wheel mode vertical direction, described horizontal girder steel horizontal positioned, and with main device for carrying a tripot bar under hold row level with both hands, one end of described horizontal girder steel is fixedly connected with longitudinal girder steel screw, the other end is provided with gin-pole truck base, described gin-pole truck is fixed on gin-pole truck base, described gin-pole truck base rear is welded with anti-tilting device, described horizontal girder steel, longitudinal girder steel and the main lower end of device for carrying a tripot bar enclose a semiclosed rectangular area jointly, described amplitude variation trolley is fixedly connected with horizontal girder steel by U-shaped bolt, and it is contained in this semiclosed rectangular area, described luffing wireline is connected with chain block, and one end is fixed on gin-pole truck, the other end is fixed on main device for carrying a tripot bar, the described wireline one end that hoists is fixed on main device for carrying a tripot bar, the other end is fixed on gin-pole truck after running block.
Wherein, the length of described horizontal girder steel is 2.5 times long of the amplitude variation trolley used.
Wherein, described running block comprises the first pulley being fixed on main device for carrying a tripot bar upper end, it is arranged on the 2nd pulley of " people " font gin-pole truck end, and the 3rd pulley being connected with suspension hook, described first pulley, the 2nd pulley are fixed pulley, described 3rd pulley is travelling block, described in the wireline one end that hoists be fixed on main device for carrying a tripot bar, the other end is fixed on " people " font gin-pole truck end successively after the first pulley, the 2nd pulley and the 3rd pulley.
Wherein, described main device for carrying a tripot bar is provided with two amplitude variation trolleys, it is respectively the first amplitude variation trolley and the 2nd amplitude variation trolley, described first amplitude variation trolley is fixed with the first horizontal girder steel, described first horizontal girder steel girder steel longitudinal with first is fixedly connected with, being fixed with the 2nd horizontal girder steel on described 2nd amplitude variation trolley, the described 2nd horizontal girder steel girder steel longitudinal with the 2nd is fixedly connected with, and described first amplitude variation trolley and the 2nd amplitude variation trolley are synchronized with the movement.
Wherein, on the 2nd gin-pole truck base on the two ends of described " people " font gin-pole truck are fixed on the first girder steel by bearing pin respectively the first gin-pole truck base and the 2nd girder steel.
Wherein, in described semiclosed rectangular area, be also provided with anti-back device, described anti-after sliding device be fixed on the main lower end of device for carrying a tripot bar by high-strength bolt.
Wherein, described horizontal girder steel and longitudinal girder steel are made by square tube or H profile steel.
The present invention also provides a kind of method mounting and dismounting lifting beam, comprises the following steps:
S1, first determine front end lifting beam weight according to tower type number, the actual height size of tower machine amplitude variation trolley both sides crossbeam, through calculating correlation parameter, made horizontal girder steel and longitudinal girder steel by square tube or H profile steel;
S2, gin-pole truck base is set in one end of horizontal girder steel, the other end bolt erects to connecting longitudinal girder steel, adopt pinch roller and hook wheel mode and longitudinal direction girder steel is fixed on the main lower end of device for carrying a tripot bar, row is held level with both hands under horizontal girder steel and main device for carrying a tripot bar, described first beam, longitudinal girder steel and the main lower end of device for carrying a tripot bar enclose a semiclosed rectangular area jointly, amplitude variation trolley is contained in described semiclosed rectangular area, and amplitude variation trolley and first crossbeam fixed by U-shaped bolt, move before and after amplitude variation trolley, thus drive first crossbeam front and back motion under pinch roller with the effect hooking wheel;
S3, installation gin-pole truck, coordinate the wireline that hoists to be connected to gin-pole truck end and main device for carrying a tripot bar upper end with a 5T chain block, and distance is not less than 5 meters, and 5T chain block controls the luffing distance of gin-pole truck; Connect two luffing wireline at gin-pole truck end position bolt and fasten jail in longitudinal girder steel upper end; during rear shifting, gin-pole truck is moved to maximum spacing fixing by this luffing wireline fastening; when amplitude variation trolley arrives removed position; amplitude variation trolley rear high-strength bolt to folder 90 degree angles anti-after sliding device, fix amplitude variation trolley;
S4, fix the first pulley in main device for carrying a tripot bar upper end, in " people " font gin-pole truck end, the 2nd pulley is set, the wireline one end that will hoist is fixed on crossbeam, and the other end is fixed on the end of gin-pole truck after being each passed through the first pulley, the 2nd pulley and the 3rd pulley that is connected with suspension hook; By tower machine self hoist wireline from the first lower end of pulley through again by the 2nd pulley downwards around to the 3rd pulley; then at gin-pole truck end winding support; form a running block; the lifting beam wireline that hoists need to be dismantled and fasten jail on the first pulley; tension main rope; 5T chain block, in the air through the 2nd pulley front and back position, arrives removed position;
After S5, dismounting one joint lifting beam, suspension hook and lifting beam are departed from, gin-pole truck is moved to 105 degree of angles, by the tension of two luffing wireline on longitudinal girder steel, at amplitude variation trolley front suspension 3T chain block, control, by 3T chain block, the speed that aerial amplitude variation trolley moves backward, when 3T chain block iron chains length is inadequate, in amplitude variation trolley rear roller position, fixing anti-back device, converts 3T chain block position with this, it is ensured that amplitude variation trolley normal safe arrives point of destination.
Wherein, the length of described horizontal girder steel is 2.5 times long of the amplitude variation trolley used.
Wherein, described gin-pole truck base rear is welded with anti-tilting device.
The invention has the beneficial effects as follows: compared with prior art, the present invention utilizes amplitude variation trolley to be mounted and dismounted by lifting beam, take full advantage of self space and advantage, lifting beam can disposable hang tower machine connect, and successfully place roofing layer, significantly reduce human cost and working efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram under the device working order of the installation and removal lifting beam of the present invention;
Fig. 2 is the structural representation under the present invention mounts and dismounts the device retrogressing state of lifting beam;
Fig. 3 is the gin-pole truck installation structural representation that the present invention mounts and dismounts the device of lifting beam;
Fig. 4 is that the present invention mounts and dismounts amplitude variation trolley working state schematic representation in the device of lifting beam;
Fig. 5 is that the present invention mounts and dismounts gin-pole truck structural representation in the device of lifting beam.
Main element nomenclature is as follows:
1, main device for carrying a tripot bar 2, horizontal girder steel
3, longitudinal girder steel 4, amplitude variation trolley
5, gin-pole truck 6, running block
7, luffing wireline 8, hoist wireline
9, chain block 11, anti-back device
21, gin-pole truck base 22, anti-tilting device
31, pinch roller 32, hook are taken turns
61, the first pulley 62, the 2nd pulley
63, the 3rd pulley 91,5T chain block
92,3T chain block 631, suspension hook.
Embodiment
In order to more clearly state the present invention, below in conjunction with accompanying drawing, the present invention is further described.
Refer to Fig. 1-Fig. 2, the present invention provides a kind of device mounting and dismounting lifting beam, comprise main device for carrying a tripot bar 1, horizontal girder steel 2, longitudinal girder steel 3, amplitude variation trolley 4, gin-pole truck 5, running block 6, luffing wireline 7 and the wireline 8 that hoists, longitudinal girder steel 3 is fixed on main device for carrying a tripot bar 1 by the mode vertical direction of pinch roller 31 and hook wheel 32, horizontal girder steel 2 horizontal positioned, and hold row level with both hands 1 time with main device for carrying a tripot bar, one end of horizontal girder steel 2 is screwed with longitudinal girder steel 3 and is connected, the other end is welded with gin-pole truck base 21, for fixing gin-pole truck 5, gin-pole truck entirety is in falling " V " font, its shape can be one-body molded, also can combine by two gin-pole trucks 5, gin-pole truck base 21 rear is welded with anti-tilting device 22, prevention gin-pole truck 5 luffing is to the tipping backwards phenomenon caused during maximum angle, horizontal girder steel 2, longitudinal girder steel 3 and main device for carrying a tripot bar 1 time end enclose a semiclosed rectangular area jointly, amplitude variation trolley 4 is clamped in this semiclosed rectangular area, and also it is provided with anti-back device 11 in semiclosed rectangular area, after anti-, sliding device 11 is fixed on main device for carrying a tripot bar 1 time end by high-strength bolt, luffing wireline 7 is connected with chain block 9, and one end is fixed on gin-pole truck 5, and the other end is fixed on main device for carrying a tripot bar 1, and wireline 8 one end that hoists is fixed on main device for carrying a tripot bar 1, and the other end is fixed on gin-pole truck 5 after running block 6.
Compared with prior art, the present invention utilizes amplitude variation trolley collocation gin-pole truck and running block, lifting beam is mounted and dismounted, take full advantage of self space and advantage, it is possible to the disposable tower machine that hung by lifting beam connects, and successfully places roofing layer, greatly reduce Highrise buildings around and lifting beam is dismantled the impact brought, installation and removal structure is simple, is easy to operation, and feasibility is strong.
In the present embodiment, the length of horizontal girder steel 2 is 2.5 times long of the amplitude variation trolley 4 used, this length is not a fixed value, but according to the model of tower machine, the actual height size of amplitude variation trolley 4 liang of curb girders, by calculating, different tower types number and deck-molding degree, length is different, and horizontal girder steel 2 is all made by square tube or H profile steel with longitudinal girder steel 3.
In the present embodiment, running block 6 comprises the first pulley 61 being fixed on main device for carrying a tripot bar 1 upper end, it is arranged on the 2nd pulley 62 of " people " font gin-pole truck 5 end, and the 3rd pulley 63 being connected with suspension hook 631, first pulley 61 and the 2nd pulley 62 are fixed pulley, 3rd pulley 63 is travelling block, and three pulleys cooperatively interact, it is possible to transported by suspension hook 631 by mechanical arm very effortlessly.
In the present embodiment, chain block 9 is provided with two kinds, one is 5T chain block, another kind is 3T chain block, installing gin-pole truck 5 and adopt 5T chain block, dismounting gin-pole truck 5 adopts 3T chain block, when installing gin-pole truck 5, coordinate the wireline 8 that hoists to be connected on gin-pole truck 5 end and the main device for carrying a tripot bar 1 of lifting beam with a 5T chain block, controlled the luffing distance of gin-pole truck 5 by 5T chain block; When after dismounting one joint lifting beam, suspension hook 631 and lifting beam are departed from, gin-pole truck 5 is moved to 105 degree of angles, by two spacing parallel settings of wireline 7 that hoist, and it is strained and fixed on longitudinal girder steel 3, at amplitude variation trolley front suspension 3T chain block, the speed moved backward by the next aerial amplitude variation trolley of 3T chain block.
The present invention also provides a kind of method mounting and dismounting lifting beam, comprises the following steps:
S1, first determine front end lifting beam weight according to tower type number, the actual height size of tower machine amplitude variation trolley both sides crossbeam, through calculating correlation parameter, it is made into horizontal girder steel 2 and longitudinal girder steel 3 by square tube or H profile steel;
S2, gin-pole truck base 21 is set in one end of horizontal girder steel 2, the other end bolt erects to connecting longitudinal girder steel 3, adopting pinch roller 31 and hooking wheel 32 modes is fixed on main device for carrying a tripot bar 1 time end by longitudinal direction girder steel 2, horizontal girder steel 2 holds row level with both hands 1 time with main device for carrying a tripot bar, first beam 2, longitudinal girder steel 3 and main device for carrying a tripot bar 1 time end enclose a semiclosed rectangular area jointly, are contained in semiclosed rectangular area by amplitude variation trolley 4;
S3, installation gin-pole truck, coordinate the wireline 7 that hoists to be connected to gin-pole truck 5 end and main device for carrying a tripot bar 1 upper end with a 5T chain block 91, and distance is not less than 5 meters, and 5T chain block 91 controls the luffing distance of gin-pole truck 5; Connect, at gin-pole truck 5 end position bolt, the luffing wireline 7 that two diameters are 12mm and fasten jail in longitudinal girder steel 3 upper end, during rear shifting, gin-pole truck is moved to maximum spacing fixing by this luffing wireline 7 fastening, when amplitude variation trolley 4 arrives removed position, amplitude variation trolley 4 rear high-strength bolt to folder 90 degree angles anti-after sliding device 11, fix amplitude variation trolley 4;
S4, fix the first pulley 61 in main device for carrying a tripot bar 1 upper end, in " people " font gin-pole truck end, the 2nd pulley 62 is set, wireline 8 one end that will hoist is fixed on crossbeam, the other end is fixed on the end of gin-pole truck 5 after being each passed through the first pulley 61, the 2nd pulley 62 and the 3rd pulley 63 that is connected with suspension hook 631; By the wireline 8 that hoists of tower machine self from the first pulley 61 times ends through downward around to the 3rd pulley 63 by the 2nd pulley 62 again, then at gin-pole truck 5 end winding support, form a running block 6, the lifting beam wireline 8 that hoists need to be dismantled and fasten jail on the first pulley 61, tension main rope 8,5T chain block 91, in the air through the 2nd pulley 62 front and back position, arrives removed position;
After S5, dismounting one joint lifting beam, suspension hook 631 and lifting beam are departed from, gin-pole truck 5 is moved to 105 degree of angles, the luffing wireline 7 of two parallel settings is strained on longitudinal girder steel 3, at amplitude variation trolley 4 front suspension 3T chain block 92, the speed that aerial amplitude variation trolley 4 moves backward is controlled by 3T chain block 92, when 3T chain block 92 iron chains length is inadequate, the fixing anti-back device 11 in amplitude variation trolley 4 rear roller position, become 3T with this and change chain block 92 position, it is ensured that amplitude variation trolley 4 normal safe arrives point of destination.
In the present embodiment, the length of horizontal girder steel 2 is 2.5 times long of the amplitude variation trolley 4 used, and this length is not a fixed value, but according to the model of tower machine, the actual height size of amplitude variation trolley 4 liang of curb girders, by calculating, different tower types number and deck-molding degree, length is different.
In this enforcement, gin-pole truck base 31 rear is welded with anti-tilting device 22, by this device, it is possible to prevent gin-pole truck 5 luffing to the tipping backwards phenomenon caused during maximum angle well.
Specifically grasp in conjunction with one and it is described further, refer to Fig. 3-Fig. 4, in the present embodiment, adopt SCM-C7030 tower machine lifting 12T roofing to hang, at each mechanism of inspection and electric installation comprehensively, make each system normal, rise and pull arm, carry out the action test of each portion, use after qualified.
First utilizing in tower crane itself system of climbing to be down to by tower crane from roofing extreme lower position before Tower crane disassembly, in frame position of climbing, tower crane is fixed, mobile roofing hangs revolution, utilizes roofing weighing arm of slinging to hang counterweight, stays one piece of counterweight to do poising action. before lifting beam, two " people " font gin-pole trucks installed by section Section of two main device for carrying a tripot bar 1, control toppling of gin-pole truck with 5T chain block and reach the effect of control suspension hook 631 central point with this. utilization hoist wireline 8 as traction power by last save lifting beam sling by power, then destroy lifting beam and connect bearing pin, slightly 5T chain block is unclamped micro-distance, last joint lifting beam and joint lifting beam second from the bottom is made to have distance, then main lifting mechanism is started, lifting beam is winched to ground, roofing is utilized to hang lifting 15 degree of angles, tower crane 50 meters of lifting beam front ends after utilizing this method to remove joint lifting beam third from the bottom successively, front pull bar is bent, slowly unclamp 12T roofing after pull bar before hanging dismounting tower crane with the little roofing of 6T and hang main hook, when do not change former hang and select release lifting beam between 40-50 rice, lifting beam under removing directly winches to ground, hang with 12T roofing again and winch to roofing by disposable for 40 meters of large arm, then 5 meters it are decomposed into, ground is winched to after 10 meters.
The horizontal girder steel 2 of 50*50*6mm*22000 is installed in amplitude variation trolley 4 upper end, it is rigidly connected with the �� U-shaped bolt of 16*8.8 level and amplitude variation trolley 4, at horizontal girder steel 2 front end welding gin-pole truck base 21, the gin-pole truck being made by �� 80*10*6000mm weldless steel tube adopts pinned connection to be arranged on gin-pole truck base 21, adopt pinch roller 31 at the first beam 2 rear portion and hook wheel 32 hook post main chord 1, in the present embodiment, amplitude variation trolley 4 has two, it is respectively the first amplitude variation trolley 41 and the 2nd amplitude variation trolley 42, first amplitude variation trolley 41 and the 2nd amplitude variation trolley 42 are respectively at main chord about 1 two ends, the two ends of " people " font gin-pole truck 5 adopt bearing pin to be fixed on the first gin-pole truck base 211 and the 2nd gin-pole truck base 212 respectively, it is fixedly connected with girder steel between first gin-pole truck base 211 and the 2nd gin-pole truck base 212, to increase by power, prevent distortion, first horizontal girder steel 2A is fixed on the first amplitude variation trolley 41 by high-strength bolt, and girder steel 3A longitudinal with first is connected, 2nd horizontal girder steel 2B is fixed on the 2nd amplitude variation trolley 42 by high-strength bolt, and girder steel 3B longitudinal with the 2nd is connected, the lower end of first longitudinal lower end of girder steel 3A and the 2nd longitudinal girder steel 3B is connected and fixed, to prevent being out of shape by during power.
In the present embodiment, connect gin-pole truck 5 end with the �� 13mm main rope 8 that hoists, gin-pole truck 5 is drawn to 75 degree of angles and the other end of the main rope 8 that hoists is fixed on beam, it is ensured that gin-pole truck 5 is firm when sliding backward. in the present embodiment, gin-pole truck 5 end is connected with one end of luffing wireline 7, the other end is separately fixed at the first longitudinal girder steel 3B upper end of longitudinal girder steel 3A and the 2nd, luffing wireline 7 front end is fixed with an interim 3T chain block 92, steel wire rope head is fastened solid on amplitude variation trolley 4, slowly successively slip amplitude variation trolley 4 saves 1.5 meters of stoppings after lifting beam tie point to next, anti-back device is become by fastening bolt combination, amplitude variation trolley 4 is fixed on lifting beam, after amplitude variation trolley 4 and horizontal girder steel 3 are fixed, put on lifting rope, the wireline used when moving after slowly unclamping amplitude variation trolley 4 after determining width between centers, start to remove lifting beam, a few joint lifting beams of front end are removed in this manner with this, until front draw rod positions.
In the present embodiment, " people " font gin-pole truck 5 adopt �� be 80x12 weldless steel tube make, material is Q235, and joint length is 8 meters, and about during installation, span is 1.3 meters, and maximum lift heavy is 1.3T, luffing adopt chain block luffing.
Topple amplitude according to practical situation, calculate gin pole list limb by power. Because being the most unfavorable processing condition during maximum amplitude, so calculating according to the most unfavorable processing condition, gin pole own wt is very little and calculates in order to convenient therefore do not consider gin pole own wt. Selecting two multiplying powers to hoist wireline, single root pulling force is 0.65T, and single root gin pole by power is:
Single limb=1.26T=12.6KN
Bar strength checking
Steel pipe specification (mm) ��80x12 Section area A (mm2) 2563.54
Radius of gyration i (mm) 24.413 Strength failure criterion [f] (N/mm2) 215
1, rod member axial tension strength checking
��=N/A=12600/2563.54=4.9N/mm2��[f]=215N/mm2
2, rod member axial compression strength checking
Bar slenderness ratio:
�� 1=L0/i=(a12+b12) 0.5/i=(1200)/24.413=49.15��[��]=15, look into specification sheet and obtain: �� 1=0.858
Axial compression stability factor:
�� 1=N1/ (�� 1A)=12600/ (0.858 �� 2563.45)=5.7N/mm2��[f]=215N/mm2
Above correlation parameter all meets the requirement of general building working specification!
In the present embodiment, installing the 40m lifting beam that tower machine heaviest piece is tower machine, when lifting by crane lifting beam (the heavy 8780kg of lifting beam), when 12T roofing is hung in 75 degree, the elevation angle, during working radius 9 meters, rated load 11400kg, playing rise is 25m. Therefore 12T roofing hang auxiliary this tower machine install task.
The advantage of the present invention is:
1) the present invention utilizes amplitude variation trolley collocation gin-pole truck and running block, lifting beam is mounted and dismounted, take full advantage of self space and advantage, lifting beam can disposable hang tower machine connect, and successfully place roofing layer, greatly reduce Highrise buildings around and lifting beam is dismantled the impact brought;
2) mounting and dismounting structure simple, be easy to operation, feasibility is strong;
3) in this enforcement, gin-pole truck base rear is welded with anti-tilting device, it is possible to prevent gin-pole truck luffing to the tipping backwards phenomenon caused during maximum angle well, smart structural design, safe and reliable.
Above disclosed it is only one of mode of the invention process, does not form the restriction to this patent right. If those skilled in the art inspire by it, when not departing from the invention objective, design the case study on implementation similar with this scheme without creativeness, all belong to protection scope of the present invention.

Claims (10)

1. one kind mounts and dismounts the device of lifting beam, it is characterized in that, comprise main device for carrying a tripot bar, horizontal girder steel, longitudinal girder steel, amplitude variation trolley, gin-pole truck, running block, luffing wireline and the wireline that hoists, described longitudinal girder steel is fixed on main device for carrying a tripot bar by pinch roller and hook wheel mode vertical direction, described horizontal girder steel horizontal positioned, and with main device for carrying a tripot bar under hold row level with both hands, one end of described horizontal girder steel is fixedly connected with longitudinal girder steel screw, the other end is provided with gin-pole truck base, described gin-pole truck is fixed on gin-pole truck base, described gin-pole truck base rear is welded with anti-tilting device, described horizontal girder steel, longitudinal girder steel and the main lower end of device for carrying a tripot bar enclose a semiclosed rectangular area jointly, described amplitude variation trolley is fixedly connected with horizontal girder steel by U-shaped bolt, and it is contained in this semiclosed rectangular area, described luffing wireline is connected with chain block, and one end is fixed on gin-pole truck, the other end is fixed on main device for carrying a tripot bar, the described wireline one end that hoists is fixed on main device for carrying a tripot bar, the other end is fixed on gin-pole truck after running block.
2. the device of installation and removal lifting beam according to claim 1, it is characterised in that, 2.5 times long that the length of described horizontal girder steel is the amplitude variation trolley used.
3. the device of installation and removal lifting beam according to claim 1, it is characterized in that, described running block comprises the first pulley being fixed on main device for carrying a tripot bar upper end, it is arranged on the 2nd pulley of " people " font gin-pole truck end, and the 3rd pulley being connected with suspension hook, described first pulley, the 2nd pulley are fixed pulley, described 3rd pulley is travelling block, the described wireline one end that hoists is fixed on main device for carrying a tripot bar, and the other end is fixed on " people " font gin-pole truck end successively after the first pulley, the 2nd pulley and the 3rd pulley.
4. the device of installation and removal lifting beam according to claim 1, it is characterized in that, described main device for carrying a tripot bar is provided with two amplitude variation trolleys, it is respectively the first amplitude variation trolley and the 2nd amplitude variation trolley, described first amplitude variation trolley is fixed with the first horizontal girder steel, described first horizontal girder steel girder steel longitudinal with first is fixedly connected with, described 2nd amplitude variation trolley is fixed with the 2nd horizontal girder steel, described 2nd horizontal girder steel girder steel longitudinal with the 2nd is fixedly connected with, and described first amplitude variation trolley and the 2nd amplitude variation trolley are synchronized with the movement.
5. the device of installation and removal lifting beam according to claim 4, it is characterised in that, on the 2nd gin-pole truck base on the first gin-pole truck base that the two ends of described " people " font gin-pole truck are fixed on the first girder steel by bearing pin respectively and the 2nd girder steel.
6. the device of installation and removal lifting beam according to claim 1, it is characterised in that, be also provided with anti-back device in described semiclosed rectangular area, described anti-after sliding device be fixed on the main lower end of device for carrying a tripot bar by high-strength bolt.
7. the device of installation and removal lifting beam according to claim 1, it is characterised in that, described horizontal girder steel and longitudinal girder steel are made by square tube or H profile steel.
8. one kind mounts and dismounts the method for lifting beam, it is characterised in that, comprise the following steps:
S1, first determine front end lifting beam weight according to tower type number, the actual height size of tower machine amplitude variation trolley both sides crossbeam, through calculating correlation parameter, it is made into horizontal girder steel and longitudinal girder steel by square tube or H profile steel;
S2, gin-pole truck base is set in one end of horizontal girder steel, the other end bolt erects to connecting longitudinal girder steel, adopt pinch roller and hook wheel mode and longitudinal direction girder steel is fixed on the main lower end of device for carrying a tripot bar, row is held level with both hands under horizontal girder steel and main device for carrying a tripot bar, described first beam, longitudinal girder steel and the main lower end of device for carrying a tripot bar enclose a semiclosed rectangular area jointly, amplitude variation trolley is contained in described semiclosed rectangular area, and amplitude variation trolley and first crossbeam fixed by U-shaped bolt, move before and after amplitude variation trolley, thus drive first crossbeam front and back motion under pinch roller with the effect hooking wheel;
S3, installation gin-pole truck, coordinate the wireline that hoists to be connected to gin-pole truck end and main device for carrying a tripot bar upper end with a 5T chain block, and distance is not less than 5 meters, and 5T chain block controls the luffing distance of gin-pole truck; Connect two luffing wireline at gin-pole truck end position bolt and fasten jail in longitudinal girder steel upper end; during rear shifting, gin-pole truck is moved to maximum spacing fixing by this luffing wireline fastening; when amplitude variation trolley arrives removed position; amplitude variation trolley rear high-strength bolt to folder 90 degree angles anti-after sliding device, fix amplitude variation trolley;
S4, fix the first pulley in main device for carrying a tripot bar upper end, in " people " font gin-pole truck end, the 2nd pulley is set, the wireline one end that will hoist is fixed on crossbeam, and the other end is fixed on the end of gin-pole truck after being each passed through the first pulley, the 2nd pulley and the 3rd pulley that is connected with suspension hook; By tower machine self hoist wireline from the first lower end of pulley through again by the 2nd pulley downwards around to the 3rd pulley; then at gin-pole truck end winding support; form a running block; the lifting beam wireline that hoists need to be dismantled and fasten jail on the first pulley; tension main rope; 5T chain block, in the air through the 2nd pulley front and back position, arrives removed position;
After S5, dismounting one joint lifting beam, suspension hook and lifting beam are departed from, gin-pole truck is moved to 105 degree of angles, by the tension of two luffing wireline on longitudinal girder steel, at amplitude variation trolley front suspension 3T chain block, control, by 3T chain block, the speed that aerial amplitude variation trolley moves backward, when 3T chain block iron chains length is inadequate, in amplitude variation trolley rear roller position, fixing anti-back device, converts 3T chain block position with this, it is ensured that amplitude variation trolley normal safe arrives point of destination.
9. the method for installation and removal lifting beam according to claim 8, it is characterised in that, 2.5 times long that the length of described horizontal girder steel is the amplitude variation trolley used.
10. the method for installation and removal lifting beam according to claim 8, it is characterised in that, described gin-pole truck base rear is welded with anti-tilting device.
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CN107697817A (en) * 2017-10-30 2018-02-16 北京紫竹慧建设服务股份有限公司 A kind of novel tower slings the method that weighing arm becomes length in the air
CN108238552A (en) * 2016-12-26 2018-07-03 广东庞源工程机械有限公司 A kind of multi-functional bar of lying prone of the assembled being connect with structure
CN111456471A (en) * 2020-05-06 2020-07-28 杭州夏克机械科技有限公司 Auxiliary balancing device for vertical splicing of steel beams
CN111807235A (en) * 2020-03-05 2020-10-23 中国华冶科工集团有限公司 Tower crane luffing trolley motor replacing device and replacing method
CN114084816A (en) * 2021-11-12 2022-02-25 北京紫竹慧建设服务股份有限公司 Counterweight arm cutting device and arm cutting process of tower crane

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CN111807235A (en) * 2020-03-05 2020-10-23 中国华冶科工集团有限公司 Tower crane luffing trolley motor replacing device and replacing method
CN111807235B (en) * 2020-03-05 2022-04-15 中国华冶科工集团有限公司 Tower crane luffing trolley motor replacing device and replacing method
CN111456471A (en) * 2020-05-06 2020-07-28 杭州夏克机械科技有限公司 Auxiliary balancing device for vertical splicing of steel beams
CN111456471B (en) * 2020-05-06 2020-10-30 杭州夏克机械科技有限公司 Auxiliary balancing device for vertical splicing of steel beams
CN114084816A (en) * 2021-11-12 2022-02-25 北京紫竹慧建设服务股份有限公司 Counterweight arm cutting device and arm cutting process of tower crane

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